It is clearly noticeable if you hold a finger loosely against the top of a speaker box's front that it vibrates much less when playing

or resonances

Mounting diameter: 198 mm

Schuko plug / IEC connector

Supra Lorad MD08DC-16-EU/SP Mk 3.1 3.5 It is clearly noticeable ifSupra MD08DC 16 EU SP mkIII power strip with NIF filter, SP surge protection, DC blocker, fully shielded, and built in 16 amp fuse. Aluminum chassis to eliminate external interference fields and a "mild" filter that does not affect sound quality. The SP model is also equipped with a power filter. Interference free to the environment, low pickup of external interference NIF filter for dynamic preserving transient filtering SP three way surge protection